. A manual of the ornithology of the United States and of Canada : the land birds . 291 greedily; these also have only one moult in the year. In anothersection, allied to Sylvia, the voice is melodious, and the moult of themale double, arriving in the spring in a more brilliant nuptial plu-mage. The young differ from the adult only during the first shells and drier parts of insects, as well as the skins and seeds offruits, are brought up from the stomach, and ejected by the bill. TYRANNUS. (Briss.) TYRANT FLYCATCHERS. Bill moderate, rather long, strong, and rounded, depressed,straight
. A manual of the ornithology of the United States and of Canada : the land birds . 291 greedily; these also have only one moult in the year. In anothersection, allied to Sylvia, the voice is melodious, and the moult of themale double, arriving in the spring in a more brilliant nuptial plu-mage. The young differ from the adult only during the first shells and drier parts of insects, as well as the skins and seeds offruits, are brought up from the stomach, and ejected by the bill. TYRANNUS. (Briss.) TYRANT FLYCATCHERS. Bill moderate, rather long, strong, and rounded, depressed,straight at the sides, widened and triangular at the base, notched andhooked at the point; mouth large; tarsus short, thin and slender;wings short; 1st, 2d, and 3d quills longest. Tail more or less deeplyforked, emarginate or equal. The larger species are unusually petulant, tyrannical and coura-geous, driving sometimes from the vicinity of their nests the mostpowerful birds of prey. They have but a single moult, and are eitherwholly destitute of song, or only utter a few quaint MH ■
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